Site-Specific Protein Ubiquitylation Using an Engineered, Chimeric E1 Activating Enzyme and E2 SUMO Conjugating Enzyme Ubc9.
Site-Specific Protein Ubiquitylation Using an Engineered, Chimeric E1 Activating Enzyme and E2 SUMO Conjugating Enzyme Ubc9.
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使用工程化嵌合E1激活酶和E2 SUMO缀合酶Ubc9的位点特异性蛋白质泛素化。
DOI:
10.1021/acscentsci.1c01490
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发表时间:
2022-02-23
影响因子:
18.2
通讯作者:
Bode JW
中科院分区:
文献类型:
--
作者:
Akimoto G;Fernandes AP;Bode JW
Ubiquitylation—the attachment of ubiquitin (Ub) to proteins in eukaryotic cells—involves a vast number of enzymes from three different classes, resulting in heterogeneous attachment sites and ubiquitin chains. Recently, we introduced lysine acylation using conjugating enzymes (LACE) in which ubiquitin or peptide thioester is site-specifically transferred to a short peptide tag by the SUMO E2 conjugating enzyme Ubc9. This process, however, suffers from slow kinetics—due to a rate-limiting thioester loading step—and the requirement for thioesters restricts its use to in vitro reactions. To overcome these challenges, we devised a chimeric E1 containing the Ub fold domain of the SUMO E1 and the remaining domains of the Ub E1, which activates and loads native Ub onto Ubc9 and obviates the need for Ub thioester in LACE. The chimeric E1 was subjected to directed evolution to improve its apparent second-order rate constant (kcat/KM) 400-fold. We demonstrate the utility of the chimeric E1 by site-specific transfer of mono- and oligo-Ub to various target proteins in vitro. Additionally, the chimeric E1, Ubc9, Ub, and the target protein can be coexpressed in Escherichia coli for the facile preparation of monoubiquitylated proteins. An engineered and evolved chimeric ubiquitin E1 enzyme loads ubiquitin on the SUMO E2 enzyme Ubc9, allowing for site-specific mono- and oligoubiquitylation in vitro and monoubiquitylation in E. coli.
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影响因子:
62.1
作者:
Cappadocia L;Lima CD
通讯作者:
Lima CD
影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis D
DOI:
10.1111/gtc.12250
发表时间:
2015-07
期刊:
Genes to cells : devoted to molecular & cellular mechanisms
影响因子:
--
作者:
Nakagawa T;Nakayama K
通讯作者:
Nakayama K
影响因子:
11.4
作者:
Lois, LM;Lima, CD
通讯作者:
Lima, CD
影响因子:
16
作者:
Knipscheer, Puck;Flotho, Annette;Pichler, Andrea
通讯作者:
Pichler, Andrea